CompTIA
Checkpoint
ISC
HP
Dell
EC-Council
EXIN
Fortinet
ITIL®
Juniper
PMI
Microsoft
VMware
Avaya
Google
Salesforce
Amazon
Palo Alto Networks
Certiport
ISC2
All Vendors
  2. Home
  3. Exams
  4. Test Prep
  5. ASVAB Section 3: Mechanical Comprehension

Free ASVAB Section 3: Mechanical Comprehension Exam Braindumps (page: 12)

Page 11 of 47
PDF with 187 Questions

When the block-and-tackle arrangement shown in the figure above is used to lift a load, all the following parts remain stationary EXCEPT_________________.

  1. the upper hook
  2. the upper block
  3. the lower block
  4. none; all the parts move

Answer(s): C

Explanation:

All the listed parts remain stationary except the lower block.



In the figure shown above, what effort E must be applied to lift the cat?

  1. 7.0 pounds
  2. 9.0 pounds
  3. 21.0 pounds
  4. 10.5 pounds

Answer(s): A

Explanation:

Apply the leverage formula: Length of Effort Arm divided by Length of Resistance Arm = Resistance Force divided by Effort Force. Or:
9 ÷ 3 = 21 ÷ E (effort force)
3 = 21 ÷ E
3E = 21 ÷ E × E
3E = 21
3E ÷ 3 = 21 ÷ 3
E = 7



In the figure above, for each complete revolution the cam makes, how many times will the valve open?

  1. 1
  2. 6
  3. 3
  4. 2

Answer(s): C

Explanation:

The valve will open each time a high point of the cam hits it.
The cam has three high points, so the valve will open three times per revolution.



In the figure above, assume the valves are all open.
Which valves need to be closed for the tank to fill up completely?

  1. 3 and 4 only
  2. 3, 4, and 5
  3. 2, 3, and 4
  4. 4 only

Answer(s): A

Explanation:

Closing only Valves 3 and 4 keeps the water from leaving the tank.






Post your Comments and Discuss Test Prep ASVAB Section 3: Mechanical Comprehension exam with other Community members:

ASVAB Section 3: Mechanical Comprehension Discussions & Posts